bishop



E. BISHOP. CHIROPRACTIC TABLE.

APPLICATION FILED SEPT-28, l 9l5.-

Patented Aug. 15, 1916.

3 SHEETS-SHEET I j mymron fdwqmibishqp AmInuErs E.'B1SHOP. cHm-omcncTABLE. APPLICATION FILED SEPT. 28; I915:

Patexitd Aug 15, 1916. s SHEETS-SHEET 2 .4 ITURHEYS i Joins.)

r OFFICE.

-nnwann BIsHor, or ENDICOTT. NEW YORK.

oninornaoric-raiatn To 1171 w/wm it I72 concern:

Be it known that L. EDWARD BISHOP, a citizen of the lj/ lil lt'l States,and a resident oi. Endicott. in he count-v otBroomev and State of NewYorlnlmve inventeda new and li'i'iproved Chiropractic-Table, of whichthe following is a full, clear, and exact descri ption.

is made of a table frame a head and chest rest, leg rest and a foot restor step, the

. said several rests being held lengthwise adjustable on the said tableframe. Use is also made of a yielding abdominal rest mounted on a tableframe intermediate the leg rest and the head rest. Use is further madeof a head rest having two cushions adapted to be moved transverselyapart-to provide steps between the cushions for accommodating portionsof the face ofthe-patient. i

A practical embodiment of the invention is represented in theaccompanying drawin-gs forming a part of this specification, in

which similar characters of reference indi-, cate corresponding parts inall the views:

. Figure 1 is aside elevation of the chiropractic table. with parts ofthe base otthe 7 stand shown in section; Fig. 2 is an enlarged elevationof the head end of the table and with the side beams of the table frameshown in cross section; Fig; 3 is anenlarged cross section of thelegrest' and the table v frame, the section being o'nthe l1ne.3.-3 ofFig. 1: Fig. 4 is an enlarged cross section of the abdominal rest, thesect on being on the line 4---% of Fig. 1;. Fig. 5 is an invertedplannview of the head and. c'hest rest and showing the-,ineans formoving the cushions toward or from each other; Fig. 6 is a plan view ofthe stand with parts of the base;

broken out to show the counterbalan'cing spring device for thetableframe; Fig. 7 is 'an enlarged cross section of the chiropractictableon the line 77 of Fig. 1; Fig. Sjis: an

enlarged plan view of the. footendofthe' table frame with parts in secton; F g. s an enlarged cross sectionofthe locking de,

Specification of Letters :Patent.

vice for the table'frame, the section be'ing on" the line l111 of Fig. 10 and FigPIO' is a sectional side elevation of the same on the line 1212 r Fig. 9.

On a suitably constructed base A are mounted standardsB carrying attheirup per ends a pivot C on which is mounted to swing the table-frame Dprovided at its head end with legs E adapted to rest onthe floor adistance beyond the base A, as plainly in- Patented Aug. 15,1916. 1Application filed September 28, 1915. Serial No; 53,050.

dicated in Fig. 1. On the table frame D are mounted the head and chestrest F, the abdominal rest G, the leg rest H and the foot or step restI, the several rests F, G, H and I being lengthwiseadjustable on thetable frame D to accommodate persons of different stature. I l s i Thetable frame D is preferably provided with tubular side beams D providednear the foot end with connected "sleeves I) mounted to swing on thepivot C and adapted to be fastened in place on the side beams D bysetscrews D or other means to' perniit oi adjustingthe' table frame Dlengthwise relatively to the. pivot C with a view to projectthe foot endof the table frame a: desired. distance beyond the pivot C, as

plainly'indicated in Fig. l. The sleeves D are rigidly connected witheach-other by a tubular crosspiece D through which extends the pivot- C.The middle portions of the f side beams D are curved. to locate thehea dportions of the sidesof-itlie table frame in a different plane from thefoot portions thereof so that the head portions of the table frame arelower at thetime the table frame" is in horizontal position than thefoot portions of the table frame. The foot ends of thesidebeams D. ofthe table frame I) are connected with each other by a crosspiece D onwhich is secured one end of a chain J eX-' tending-downwardly andpassing arounda guide pulleyJ" journaled in the stand atthe foot of thebase A. The chain J then extends forward and connects. with a crosshead-J connected by counterbalancing springs J with a crosshead' J attachedto or forming part of the base A. The springs J 3 are sutficientlystrong to 1 approximately counterbalanceQthe/table ,frame D with aperson of ordinary weight in position on the table. In case the-table isto be used for a patient.

' ofmoreftan i dinary weigl1t,nse is made -c interbalancing spring Jthecrosshead J and send-to, a'chain J, at

i es

tached to the peripheral face of a pulle K secured on the lower end of avertical s aft K journalcd on the base'A. l he upper end of the shaft Kis provided with an arm K to allow of turning the shaft K to cause thepulley K and chain J to give more or less tension to the auxiliaryspringJ according to the direction in which the arm K is turned. On the arm K-is pivoted a locking pedal K provided with a tooth K adapted to engagea toothed segment K fixed on the base A to lock the arm K in the adjusted position. \Vhen the table frame pedal K into unlocked position, itis ev1- dent that the spring J is normally not placed under tensionduring the movement ofthe table frame D from inclined to horizontalposition. When, however, a patient of more than ordinary weight is to besupported on the table then the operator manipulates the arm K and thepedal K to turn the pulley K with a view to draw the chain J taut and tolock the arm K against movement by the pedal K engaging the toothedsegment. When the table frame D is'now swung from inclined position intohorizontal position and the crosshead J is thereby moved to the rightthen not only the springs J: are placed under tension but also thespring J 5 to compensate for the ex- .40

tra heavy load on the table frame D. ,It is understood that by movingthe arm K more or less to the right, it is possible to increase ordecrease the tension of the spring J to suit existing conditions.

In order to lock the table frame Din horizontal position, the followingarrange ment is made, special reference being had to Figs. 1, 7, 9 and10: On the base A is fixed a keeper L adapted to-be engaged by'a hook Lextending from a disk L mounted to turn loosely on a shaft L extendinglengthwise of the table frame D. The shaft L is journaled in the leg Eand in a bracket L attached to the side beams of the table frame D (seeFigs. 1 and 7), and the outer end of the shaft L? is provided with asuitable handle L under the control of the operator for turning theshaft L The arm L is provided with pins L extending. into L-shaped slotsL formed in the bracket L and the arm- L is also provided with anopening L through which extends loosely.

the shaft L Into the opening L extends a pin L held on a collar Lattached to the shaft L Now when the latter is turned the pin L turnsthe arm L to engage the hook'L with the;keep er L and during thisturning movement of the arm L the pins L move into" the verticalportions of the slots L" thus allowing'the arm Lto yield 4 downwardly.By the arrangement described the table frame is locked against upwardswinging motion but is free to yield slightly in a downward direction.

The head rest F is constructed in detail as follows, special referencebeing had to Figs. 1, 2 and 5: On the side beams D of the table frame Dis slidably mounted a carriage F having sleeves F slidably engaging theside bars D and having uprightsF extending from the sleeves andconnected with each other by crossbars F to form a rigid structure. Onthe uprights F are mounted Crossbars N to extend through verticalslotsin arms N )ivotally connected at their upper ends at N with lugs N of atable N supporting transversely adjustable cushions O and O, ashereinafter more fullydescribech On the outer ends of the crossbars Nare pivoted cam levers N adapted to engage ashers N" slidable on thecrossbars N and abutting against the outerfaces of the slotted arms N.The inner faces of the said slotted arms 1* .rest

against washers N held against the qip rights F of the head restcarriage. This the arms N are adj ustably fastened in place on thecrossbars Na On swinging the cam levers N upwardly the pressure on thewashers N is released to allow of raising,

loweringor inclining the table N and with it its cushions O and O, andwhen the dc: sired position is reached the cam levers N are swungdownward. to exert pressure against the washers N to clamp the side ionarms N firmly in place against the washers N to hold the table N, withits cushions O, O, in the adjusted position. On opposite sides of thecarriage are mounted clamping levers F. (see Fig. 1) adapted to engagethe side beams Dof the table frame I) to permit of securely locking thecarriage F in place after the same has been adjusted lengthwise on thetable frame D.

The bottoms 0 O of the cushions O, O

are of wood or other rigid material and are mounted to slidetransversely on a dovetail tongue N fixed transversely on the top of thetable N. In order to. move the cushions O and 0' toward or from eachother, use is made of pins P, P engaging the bottoms O O and extendingthrough transverse slots formed in the table N. The pins P and P areattached to links P P pivot ally connected with each other by a pivot Pengaged by a rod P j-1nounted to slide lengthwise inv a suitable bearingP secured to the under side of the table N. V The rod 1 is provided witha suitable handle P under the control of the operator for irrplisoparting a lengthwise movement to the rod P to cause the links P P andtheir pins P, Pt'o slide the cushions O and .0. toward "or from eachother, the cushions being "guided onthe dovetail tongue N? of the tableN It is understood that when the cushions O and O are moved apart, theface of the patient can be readily accommodated between the cushions atthe time the patient is supported face' downward on the rests F, G. andH. An auxiliarylcushion O is mounted on the lower end ofthetable N andextends entirely across the same'to support the chest of thepatient whenthe latter is supported in face-down position on the table.

The abdominal rest G is in the form of a cushion G mountedon astandardGr (see F ig. 4:)- formed of'tubular telescoping, sections G G and G, ofwhich the telescoping section G is provided at its bottom with a cap Gand is provided at its sides with transverse trunnions G mounted to turnin abase T slidably mounted on the side beams D of the table frame: D.Torsion springs T. connect the base T with the trunnions G to normallyhold. the standard G in upright position but to allow the standard toswing in a lengthwise direction. The telescoping sections G .G* and Gare held normally in an extended position bya spring T arranged withinthe sections and bearing with its upper end on the closed top of thesection G while the lower end of'the said spring T rests on a plate Tengaged by a setscrew T screwing in the cap G to allow of adjusting thetension of the spring T by screwing the screw 'rod T up or down in thecap G The base T can be readily disengaged from the side beams Dwhenever it is desired to remove the abdominal rest G, that is, when itis desired not to use the said rest.

' material.

The body rest H, shown in detail in Fig. 3, is in the form of a cushionH having its bottom H made of wood or other suitable The body rest H isvertically adjustable on a carriage H mounted to slide lengthwise ontheside beams D of the table frame D. The carriage H is provided atopposite sides with clamping levers H adapted to engage the side beams Dto lock j the carriage in position after the same-has slidably engagingthe sidewbeams D .or the table frame 1), as plainlyindicated in Fig. 8.Y The bars I are pressed on at their forward ends by springs .I heldwithin the hollow side beams D. The side beams I are provided withratchet teeth I engaged by pawlsI held on levers I fulcrumed on the-beams D i'and pressed on by springs I to normally hold the pawls I inengagement wlth the ratchet teeth'I witha view to'hold" the rest againstan outward movement by the action of the springs I". -When the frame Dswings from vertical into horizon-. tal position then the forward endsof the levers I are adapted to move in engagement with the cam lugs Bformed onthe upper ends of the standards B. By the. arrange mentdescribed the leversI swing toward each other against the'tension of thesprings I and thereby withdraw the pawls I from the ratchet teeth I toallow the springs I to push the foot rest I outwardly. \Vhen the rest Iis in innermost positionand the table frame is in upright position" thenthe rest I is close to the floor to allowthe patient to readily steponto the foot rest I and when the table frame D has been returned tonormal horizontal position and the patient is supported on the rests F,G and H then, the.

rest I is automatically released, as above described, andmoves intooutermost position and away from the patients foot, thus'preventing thepatient from straining the body during the time the adjustment is made.In

order to return the foot rest Iautomati cally to innermost positionafter the adjust- I ment is completed, use is made of'a chain- Qattached at one end to the foot rest I and extending forwardly over apulley Q" journaled in arms I) forming part of-thecross' piece D", asshown in Fig. 8. The forward end of the chain. Q extends downward from"the pulley Q and is attached to -a crossbar B forming part of thestandard Br] hen the table frame D is s\\-'ung-int0 horizontal positionwiththe foot rest I in forward position then the chain Q becomes slackowing to the downward swinging of the pulle'y Q,

and when the foot rest I is released and moved rearward as aboveexplained then the chain Q is drawn taut. \Vhentlie table frame D isswung from horizonta position into upright position the pulley Q. alsoswings upwardly and in doing so it exerts a pull on the chain Q wherebya pullis 'exerted onthe foot rest I, todraw the latter upwardly intoposition for supporting the feet, of the patient at 'thetime theframe Dnears an upright position. It isu'nders'tood I that when the footrestlI'is drawn upwardly as above described, it is 'automatically'lockedin place by the pawls I engaging the ratchet Tithe levers I at this timebeing free. of the tion by their springs .1 The foot rest is cam lugsvBare pres-sedlinto' locking posi;

now again in position to support the pa tients feet when the table framereaches an upright position, to allow the patient to conveniently stepoff the foot rest.

From the foregoing it will be seen that, by the arrangement described,the patient can be readily positioned on the table without discomfortand with the least physical exertion on the part of the operator. Itwill also be noticed that the various rests F, G, H and I can be readilyadjusted lengthwise on the table frame to suit the stature and weight ofthe patient, and if the patient is supported face downward thenprovision is made for free breathing by supporting the head between thespaced cushions O and 0'.

Although I have described the table for chiropractic purposes, it'isevident that it can be used by surgeons and other practitioners.

Having thus described my invention, I claim as new and desire to secureby Letters Patent: a i

1. A table of the class described, comprising a table frame, a head andchest rest hav- 'ing a base, cushions adjustable transversely on thebase toward and from each other, a leg rest, an abdominal rest and afoot rest, the-said several rests being held lengthwise adjustable onthe said frame.

2. A table of the class described, provided with a table frame havingtubular side beams,'a head and chest rest having depending slotted arms,a carriage mounted to slide lengthwise on the said side beams, crossbars fixed on the carriage and extending through said slotted arms, anda clamping device including cam levers fulcrumed on the ends of saidcross bars for adiustably connecting the said slotted arms with the saidcarriage to raise or lower the head rest.

3. A table of the class described provided with a head and chest resthaving cushions, comprising a base, cushions mounted to slidetransversely on the base, and manually confor moving the cushions towardor from each other to form a space between the said cushions.

4. A table of the class described, provided with ahead and chest rest,comprising a base, cushions mounted to slide transversely on the saidbase, links pivotally connected I with the .'Sl1(l cushions and guidedtransversely on the said base, and a rod slidable lengthwise on the baseand pivotally c onnected with the said links. r

5. A table of the class described provided with a head and chest resthaving cushions, the bottoms of which are of rigid material, a dovetailtongue extendingtransversely of the table and on which the cushions aremounted to slide transversely, pins engaging the bottoms of the cushionsand entending through transverse slots formed 1n the table, linksconnected with the said pins and p1votally connected with each other,and a rod provided with a handle and. mounted to slide lengthwise in abearing on the underside of the table, the rod engaging the pivot ofsaid links. 5 I

6. A table of the class described provided beams to lock the carriageagainst movecarriage and adapted to'engage the said side ment, and arest vertically adjustable on the v said carriage.

7.,A table of the class described provided with a carriage, acrossbarfixed on the said carriage, a rest having depending slottedv armsslidingly engaging'the said bar, and cam levers fulcrumed on the ends ofsaid bar and adapted to engage the said slotted arms to clamp the lattertothe carriage.

8. A table of the class described provided the side beams, uprightsextending 'rom the sleeves, cross bars fixed to the uprights, a restvertically adjustable on said carriage and provided with dependingslotted arms, slidingly engaging the said cross bars, cam leversfulcrumed on the outer ends of said cross bars, washers on the crossbars against which the slotted arms are clamped by the said cam levers,and means for locking the carriage againstwmovement on the side beams.

9. A table of the class described provided with a table frame, anabdominal rest having a base mounted on the said frame, a standardmounted to swing on the said base, a cushion mounted on the saidstandard. and springs-pressing the said standard to hold the same inupright position and to allow the standard to swing forward or backward. l0. A table of the class described providd with a table frame, anabdominal rest havmg a base mounted on the said frame, a standardmounted to swing on the said base and made in hollgw telescopingsections,. a spring in the saidsectionsrto hold the same in yieldingrelation toeach fbther, a cushion mounted on the said standard, andsprings pressing the said standard to hold the same in upright positionand -to allow the standard to swing forward or backward.

11. A table of the class described, pro vided with-an abdominal resthaving a cushion, a standard carrying the cushion and made in hollowtelescoping sections, and a spring in the said sectionsto hold the samein yielding relation to each other.

12. A table of the class described, provided with an abdominal resthaving a base,

.a standard provided with transverse trunnions journaled in the saidbase, torsion .springs on the said trunnions, and a cushion mounted onthe said standa 18. A table of the class described provided with anabdominal rest having a cushion, a standard carrying the cushion andmade in hollow telescoping sections, a spring in the said sections tohold the same in yielding relation to each other, and means foradjusting'the tension of the said spring,

14:. A- table of the class described,com

prising aystand, a table frame mounted .to swing thereon and providedwith a leg, a keeper held on the said stand, a hook mounted to swingloosely on the said frame and adapted to engage the said keeper to lockthe table in horizontal position and connections between the pivoted endofthe' hook and the frame to allow the hook to yield in a'downwarddirection.

15. A table of the class described, comprising a stand, a table framemounted to swing thereon and provided with a leg, a"

keeper held on'the said stand, a hookmonnted to swing on the said frameand adapted to engage the said keeper to lock the table in horizontalposition, pins on the pivotal end of the said hook, and a bracket on theframe and having cam slots engaged by the said pins. Y

16. A table of-the class described, com prising a stand,-a table framemounted to swing on the said stand. and provided at its head end with aleg, a keeper held on the said stand intermediate the said leg and thefulcrum of the table frame; .a shaft journaled on the said stand andprovided with a-c0llar having a pin, a hook mounted to swing loosely onthe said shaft and adapted to engage the said keeper, the hook having anopening into which extends the said pin for imparting a swinging motionto the hook on turning the shaft.

17. 'A table of the class described, comd prising a stand, a table framemounted to swing on the said stand, andprovided at its head end with aleg, a keeper held on the I said stand intermediate the said leg and thefulcrum of thevtable frame, a shaft mounted toturn and provided with acollar having a pin, a dish mounted to swing loosely on J said shaft, ahook extending from said disk and adapted to engage the said keeper',the disk having an opening into which extends the said pin for impartinga swinging motion to the hook on turning the shaft.

18. Atablc of the class described, com-" prising a stand, a table framemounted'to swing thereon, and provided with a leg, a

keeper held on the said stand, a'br'acket on thetable frame, a shaftjournaled on the said leg and bracket and having a handle for turningthe same, the shaft being provided with a collar having a pin, a diskmounted to s\\"ing loosely on said shaft, a

hook extending from said disk and adapted I30 engage the said keeper,the disk having, an opening into wh ch extends the said pm I forimparting a swinging motion to the hook on turning the shaft, and pinson the said disk, the said bracket having L-shaped slots engaged by thesaid pins.

19. A table of the character described,

p'rovided with a table frame havingside beams, a foot rest havingtoothed bars slid-f ably engaging the said side beams, pawlsen gagingthe toothed barsfor locking the same in position on the said side beamsand spring pressed levers carrying the said pawls.

2O. A table of the class described pro-v vided with a table frame havingside beams, a foot rest having bar's slidably engaging the said sidebeams, springs in the said beams and pressing the said foot rest bars,and" locking means for locking the said foot rest bars in position onthe said side beams. I

21. A table of the class described provided with a table frame havingside beams, a foot rest having bars slidably engaging the said sidebeams, the said bars having ratchet teeth, springspressing the saidbars, pawls engagingthe said ratchet teeth, and spring pressed leversfu'lcrumedon the said side beams and carrying the saidpawls,

22. A table of the'class described-, provided with a table frame havingtubular the said side beamspand handled'clainping' levers pivoted onopposite sides of "therest and adapted to engage'the'said side beams toclamp the rest inplacea 28.. A table of thefclass described, comprisinga stand, a table frame pivoted on the said stand andhaving its foot endprojecting beyond thefulcrum of the table frame,

a guide on the said stand, a'flexibleconnection attached at one end tothe said foot and I of the table frame, and passing aroundthesaid'guide, a crosshead at the base of the stand and to which the otherend of the said flexible connection is attached, counterbalancingsprings attached atv one end to the base of the stand and at the otherend to the said crosshead, an auxiliary counterbalancing springconnected with the said, crosshead, a device mounted t'o turn andconnected with the said auxiliary counterbah ancingspring, the saiddevice being con saidguide,a crosshead at the base of the] 95 sidebeams, a rest having sleeves slidable on" stand and to which the otherend of the said said crosshead, a chain connected with the other end ofthe said auxiliary counterbalancing spring, a pulley to which thesaidchain is fastened, an arm for turning the said pulley, and a pedallocking mechanism for the said 'a-rni.

25. A table of the class described provided with a stand, a table framemounted to swing thereon and having its foot end projecting beyond thefulcrum of the table, a spring-pressed foot rest slidable on the saidtable, locking means for the said foot rest and automatically controlledby the swinging movement of the table, and returning means forthe saidfoot rest to automatically draw the foot rest into return-position onswinging the table from horizontal into upright position. a

26. A table of the class described, provided with a stand, a table framemounted to swing thereon and having its foot end projecting beyond thefulcrum of the table, a spring-pressed foot rest slidable on the saidtable and provided with toothed side bars, spring-pressed leversfulcrumed on the said table frame and having pawls engaging the saidtoothed side bars, and cam lugs on the said stand and adapted to beengaged by the said levers on the table frame swinging into a horizontalposition to withdraw the pawl from the toothed side bars to allow thesprings of the foot rest to move the latter into extended position.

27. A table of the class described provided with a stand, a table framemounted to swing thereon and having its foot end pro.- jectingbeyond thefulcrum of the table, a springpressed foot rest slidable on the saidtable, a chain connected at one end with the said loot a'nd'at the otherend with the said stand and a pulley engaging the said chain and mountedon the said table frame.

28. A table of the class described provided with a table'franie havingside beams, a foot rest having bars slidably engaging the said sidebeams, the said bars having ratchet teeth, springs pressing the saidbars, pawls engaging the said ratchet teeth, spring-pressed leversfulcrumed on the said side beams and carrying the said pawls, and meansconnected with the said foot rest to draw the latter into closedposition.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

EDWARD BISHOP.

Witnesses:

Mrs. W. M. \Vooo, Roscoe H. ENGLISH.

